Nobody was promised anything in 2016. I backed in 2014 with the express knowledge that the pledge was to support the development of two games at whatever pace it took to do it to the standards they stated from the beginning, and not to compromise for the sake of delivering something less than that. They have been very clear from the beginning that it was not going to be a quick release, but a release that upheld the dreams they were putting on paper. THAT'S what you backed, and they have been very clear about that since day 1.
And the fact that many people have hundreds or thousands of hours in the 'verse at this point tells me it's plenty of a game at this point for people to have gotten their money's worth.
I know i paid less than $100 for my package and have more hours in the game than more than half my stream library, so seems like a game to me.... And one that's been plenty worth my entertainment dollars.